<template>
    <div class="longin_container">
        <div class="login_box">
        <!-- 头像区域 -->
            <div class="avater_box">
                <img src="../assets/logo.png" alt="">
        </div>
         <!-- 登录表单区域 -->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
            <!-- 用户名 -->
            <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="el-icon-user" ></el-input>
            </el-form-item>
            <!-- 密码 -->
             <el-form-item prop="password">
            <el-input v-model="loginForm.password" prefix-icon="el-icon-lock" type="password" ></el-input>
            </el-form-item>
            <!-- 按钮区域 -->
             <el-form-item class="btns">
                 <el-button type="primary" @click="login">登录</el-button>
                 <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>
        </el-form>
        </div>  
    </div>
</template>


<script>
    export default{
        data() {
            return {
                // 登陆表单的数据绑定对象
                loginForm:{
                    username:'',
                    password:''
                },
                //表单验证规则
                loginFormRules:{
                    //验证用户名
                    username:[
                        { required: true, message: '请输入用户名', trigger: 'blur' },
                        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                             ],
                    //验证密码
                    password:[
                        { required: true, message: '请输入登录密码', trigger: 'blur' },
                        { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                    ]
                }
            }
            
        },
         methods:{
             resetLoginForm:function(){
                 this.$refs.loginFormRef.resetFields();
             },
             login:function(){
                 this.$refs.loginFormRef.validate(async valid =>{
                        if(!valid) return;
                       const {data:res} = await this.$http.post('login',this.loginForm);
                       if(res.meta.status !==200) return this.$message.error('登录失败')
                         this.$message.success('登录成功')
                         window.sessionStorage.setItem('token',res.data.token);
                         this.$router.push("/home");
                })
             }
    } 
    }
   
</script>

<style lang="less" scoped>
.longin_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform:translate(-50%,-50%);
    -webkit-user-select:none;

     -moz-user-select:none;

     -ms-user-select:none;

     user-select:none;
    .avater_box{
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        padding: 10px;
        border-radius: 50%;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img{
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }

}
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
}


</style>